49205851 has 4 divisors (see below), whose sum is σ = 50252832. Its totient is φ = 48158872.

The previous prime is 49205813. The next prime is 49205857. The reversal of 49205851 is 15850294.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49205851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49205857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523420 + ... + 523513.

It is an arithmetic number, because the mean of its divisors is an integer number (12563208).

Almost surely, 2^49205851 is an apocalyptic number.

49205851 is a deficient number, since it is larger than the sum of its proper divisors (1046981).

49205851 is a wasteful number, since it uses less digits than its factorization.

49205851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046980.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 49205851 is about 7014.6882325589. The cubic root of 49205851 is about 366.4422848479.

The spelling of 49205851 in words is "forty-nine million, two hundred five thousand, eight hundred fifty-one".